Articles in 2014

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  • The on-line isotope separation technique for the production of accelerated beams of radioactive ions has led to important advances in our understanding of atomic nuclei. These are now reviewed, and further prospects are discussed.

    • David Gareth Jenkins
    Progress Article
  • Monolayer films of iron selenide deposited on strontium titanate display signatures of superconductivity at temperatures as high as 109 K. These recent developments may herald a flurry of exciting findings concerning superconductivity at interfaces.

    • Ivan Bozovic
    • Charles Ahn
  • Landau levels in graphene are not equidistant so that transitions between them can be individually probed. Time-resolved optical pumping experiments reveal strong electron–electron scattering resulting in an Auger-depleted zeroth order Landau level.

    • Martin Mittendorff
    • Florian Wendler
    • Stephan Winnerl
  • Dark matter remains experimentally elusive. But what if it is more classical than expected, resembling a spatially varying field? A network of atomic clocks would be able to detect its variations.

    • Rana Adhikari
    • Paul Hamiton
    • Holger Müller
    News & Views
  • Many quantum protocols require fast, remote entanglement generation to outperform their classical counterparts. A modular solution is now reported, using trapped ions that are remotely entangled through photons.

    • D. Hucul
    • I. V. Inlek
    • C. Monroe
  • A proposal for detecting dark matter originating from light fields rather than particles makes use of existing networks of atomic clocks to measure time discrepancies between clocks that are spatially separated.

    • A. Derevianko
    • M. Pospelov
  • Non-reciprocal components are useful in microwave engineering and photonics, but they are not without their drawbacks. A compact design now provides non-reciprocity without resorting to magnets or nonlinearity.

    • Ari Sihvola
    News & Views
  • Falling droplets bounce back well from superhydrophobic surfaces. Now it is shown that when a thin air film is made to persist between drop and surface, efficient bouncing is possible for wettable surfaces too, and for drops with low surface tension.

    • Jolet de Ruiter
    • Rudy Lagraauw
    • Frieder Mugele
  • Stretching a sheet of graphene could induce a superconducting state. Similar strain-induced superconductivity may be realized at the interface between a topological crystalline insulator and a trivial band insulator.

    • Fakher F. Assaad
    News & Views
  • Solitons in attractive Bose–Einstein condensates are mesoscopic quantum objects that may prove useful as tools for precision measurement. A new experiment shows that collisions of matter-wave bright solitons depend crucially on their relative phase.

    • Thomas P. Billam
    • Christoph Weiss
    News & Views
  • Atomic matter waves provide a controllable platform for studying the behaviour of solitons. In a lithium condensate, a characterization of the dynamics of collisions between solitons reveals a dependence on their relative phases.

    • Jason H. V. Nguyen
    • Paul Dyke
    • Randall G. Hulet
    • Iulia Georgescu
    Research Highlights